新中国建立以后,作为一个有着悠久历史和灿烂文明的社会主义大国,一方面中国继续面临着来自外部世界对国家安全和统一的威胁,另一方面人口多、底子薄的经济落后状况制约着中国的发展。在这种条件下,如何尽快改变中国贫穷落后面貌,赶上和超过世界发达国家,使中华民族不仅自立于世界民族之林, After the founding of new China, as a big socialist country with a long history and splendid civilization, on the one hand, China continues to face the threat from the outside world to national security and reunification. On the other hand, the backward economy with a large population and a weak foundation restricts China development of. Under such conditions, how can we change the poor and backward China’s situation as soon as possible, catch up with and surpass the developed countries in the world so that the Chinese nation will not only be independent of the world’s ethnic groups,